Declarative Knowledge

Declarative knowledge is factual knowledge. For example knowing that "A cathode ray tube is used to project a picture in most televisions" is declarative knowledge. Propositional knowledge or declarative knowledge is knowledge or the possession of information that is either true or false.

Declarative knowledge is assertion-oriented. It describes objects and events by specifying the properties which characterize them; it does not pay attention to the actions needed to obtain a result, but only on its properties.